The climbing and bouldering gym blocwald, located between Villingen and Schwenningen, attracts climbers from far beyond the region who enjoy climbing, falling, and climbing again. In the spacious bouldering hall, good sound reinforcement plays an important role, especially during competitions. Therefore, several 2-way HiFi spherical loudspeakers KL1900 with wide dispersion characteristics were installed under the hall ceiling. The loudspeakers were given a special gray paint finish. Divided into individually adjustable and controllable zones, the areas around the bouldering hall, such as the training area or the cafe with terrace, can also be supplied with different background music simultaneously via the compact and weatherproof HiFi Mini 4 WP speakers.